diff --git a/install-koji-farm.sh b/install-koji-farm.sh
index f1b3a1e..fe42140 100644
--- a/install-koji-farm.sh
+++ b/install-koji-farm.sh
@@ -32,10 +32,10 @@ curl $SILENT $SCRIPT_GIT/koji-bootstrap-build.sh > $SCRIPT_DIR/koji-bootstrap-bu
 chmod o+x $SCRIPT_DIR/*.sh
 
 # install any required packages
-if [ -z $(dnf list installed | grep epel-release) ] ; then
+if [[ -z $(dnf list installed | grep epel-release) ]] ; then
     dnf install -y epel-release $QUIET
 fi
-if [ -z $(dnf list installed | grep netcat) ] ; then
+if [[ -z $(dnf list installed | grep netcat) ]] ; then
     dnf install -y netcat $QUIET
 fi
 
diff --git a/koji-setup/koji-add-builder.sh b/koji-setup/koji-add-builder.sh
index c328382..4b0066d 100644
--- a/koji-setup/koji-add-builder.sh
+++ b/koji-setup/koji-add-builder.sh
@@ -38,10 +38,10 @@ curl $SILENT $SCRIPT_GIT/koji-deploy-hub.sh > $SCRIPT_DIR/koji-deploy-hub.sh
 if [ ! -d $SCRIPT_DIR ] ; then mkdir -p $SCRIPT_DIR ; fi
 
 # install any required packages
-if [ -z $(dnf list installed | grep epel-release) ] ; then
+if [[ -z $(dnf list installed | grep epel-release) ]] ; then
     dnf install -y epel-release $QUIET
 fi
-if [ -z $(dnf list installed | grep netcat) ] ; then
+if [[ -z $(dnf list installed | grep netcat) ]] ; then
     dnf install -y netcat $QUIET
 fi
 
@@ -79,7 +79,7 @@ else
 
     ## On the HUB
     # check if nfs has been installed on the hub (only need to install once) 
-    if [ -z $(dnf list installed | grep nfs-server) ] ; then
+    if [[ -z $(dnf list installed | grep nfs-server) ]] ; then
         # add nfs share for koji files direcory to hub
         curl $SILENT $SCRIPT_GIT/koji-deploy-nfs-server.sh > $SCRIPT_DIR/koji-deploy-nfs-server.sh
         chmod o+x $SCRIPT_DIR/koji-deploy-nfs-server.sh
diff --git a/koji-setup/koji-deploy-builder.sh b/koji-setup/koji-deploy-builder.sh
index 8dd81fb..001d830 100755
--- a/koji-setup/koji-deploy-builder.sh
+++ b/koji-setup/koji-deploy-builder.sh
@@ -33,10 +33,10 @@ source "$SCRIPT_DIR"/koji-parameters.sh
 KOJI_BUILD_FQDN="$(hostname -f)"
 
 # Install the koji builder componelts from epel
-if [ -z $(dnf list installed | grep epel-release) ] ; then
+if [[ -z $(dnf list installed | grep epel-release) ]] ; then
 	dnf install -y epel-release $QUIET
 fi
-if [ -z $(dnf list installed | grep koji-builder) ] ; then
+if [[ -z $(dnf list installed | grep koji-builder) ]] ; then
 	dnf install -y koji-builder $QUIET
 fi
 
diff --git a/koji-setup/koji-deploy-hub.sh b/koji-setup/koji-deploy-hub.sh
index abc52e0..1c4281c 100644
--- a/koji-setup/koji-deploy-hub.sh
+++ b/koji-setup/koji-deploy-hub.sh
@@ -38,7 +38,9 @@ fi
 
 # Install all the required packages (some live in the epel repo, so we need to install that too)
 dnf config-manager --set-enabled powertools $QUIET
-dnf install -y epel-release $QUIET
+if [[ -z $(dnf list installed | grep epel-release) ]] ; then
+	dnf install -y epel-release $QUIET
+fi
 dnf install -y koji-hub mod_ssl koji koji-web koji-utils policycoreutils-python-utils $QUIET
 dnf module enable postgresql:10 -y $QUIET
 dnf install -y postgresql-server $QUIET